Crusher



Jan. 13, 1931. E. H. FRICKEY 1,788,388

CRUSHER Filed oct. 5. 1928 2 sheets-sheet 1 E. H. FRICKEY Jan. 13, 1931.

CRUSHER 2 sheets-sheet -2 Filed Oct. 5. 1928 Patented Jan; 18, 19:81`

- 'Unirse srArss ATENT -FFICE Einw-Rnv FRIcRRgVoF PASADRNA PARK,ivrIssoURI' cRUsHER y :This invention relates .to Crushers, and withregard to certain more specific features to crusliers for suchVinaterialsfas limestone, shale, iron, ore,f coal, gypsum, asphalt rockand similar materials which may contain moist impurities such as clay ormud. Y

Among the several objects of the inventionmay be noted the provision ofa crusher having movable breaker plates adapted to follow described, andthe scope ofthe application of l which will be indicated in thefollowing claim-s. Y

' In the accompanying drawings, in which are shown several of variouspossible embodiments of this invention,

n Crusher lFigQ is -a front'elevation; -Q' Fig. 3 is an ideallongitudinal section `taken approximately on the lineS-B of Fig.`2;

an alternate form ofthe invention ;-and,

Fig. 5 is afragmentary view showing cer-r tain chainbrealier platedetails. Y

Similar reference characters indicate corviews Vof the drawings.

responding Vparts throughout tli'ejseveral` Referring now to thedrawings therev isy illustrated at 1 a frame comprised offside castings3,V a cover 5 and a hopper chute. 4.0` Forwardly boltedat 9between'thetwo side castings 8,

its central opening normally'closedby--a door Fig. 1 is arightsidefelevationl'of they n end a driving coupling 31. v Fig. 4 is aview similar to Fig. 3 showing is a cross Vchannel beamll (see 4).Thischannel beam` 11 serves to tier` the side castings together at theforward endv `of the Crusher. Ahead of said channel beam 45 11 is boltedanother cross beam or 4brace casting 10`bolted sidewardly at points 12.This',

casting 10 also aids in holding-the frameside A be understood that thebeam 11 maybe dislpensed'with, under certain conditions.

i The `cover 5, itselfan assembly `of com ponent castings serves toclose the deviceand ,tie the end"` castings-together their upperportions. I, Y y i Tne Vsidecastings 3, the frame 13 including itsidoor15', andthe cover 5 serve to enclose arotating set of hammers 17 mountedbetween .discsl9- The .disc faces are machined to rejceive the hammersbetween themand are provided with throughbolts 21 for tightening thehammers. Other holes 23 in the discs' V"permit adjustment of eachfsetofhammers as wear onsai'd hammerstakes place. The adpistment is radial'sotliat asthe hammers wear shorter, compensation may 'be' periproportions as isthe' whole machine. On the 15 which maybe opened .forpurposes of inspection whenfoccasion demands. ltsisto' left end of theshaft,"and outside of'y the 'mal chine is borne a ii'ywheel 29, and onits right Cradled below the rotary hammers 17 are'l,`

cagebars or' gratings, casten bloc l(see Figr.3) Theyare held inposition by means ofbolts 35` and cageliners 37; `Theliners farefboltedto the'side castings 3 and serve asend supports for the cage bars. Theyi `alisoprotectV the surfaces "to which they are Vbolted from abrasion.y These bars serve to permit .only a material which` has'V beenthebasefof themachine.-

fcrushedfdown to av proper size to pass out of f At the'ends of the`hammer-disc assembly, or rotor, are placed end liners 39.` These arebolted to the end-,casting `3 and :cover 5 and serve asrenewable"safeguards against abraslionf of said parts. vThe chute 7 islined"y l with-liners 14 at points-subjected to abrasion;

' Forwardly'of the machine, and on `the :upper cornersof thuevsidecastingsf are fastened 'guide castings'lll (Figs.v 1 andg2),A lThe'secastings` 41 are' (provided with Vrearwardly and downwardly slopingguide slots 43. p

Adjustable bearings 47 are slidably held in the slots 43. These bearingsare suitably held in an adjustable position by means of underslungsaddle members 49 upon which said bearings rest.` The members 49 arecountersunk into the bearings47and prevent sideward motion of saidbearings. Themembers 49 are held in positionby avpair of adjustingbolts51.

Mounted in and between the bearing blocks 47 is an upper cross-shaft 45upon which is mounted a plurality (fou-rsliown -in-Fig 2) Vof supportingrolls55. The rolls 545 may be p -,varied1-in` number and position tosuit certain f bearing block'salG'. atw eachside of the ma-A A lowercross shaft 57, similar to the upper cross'shaft' 45,eXtends laterallybetween the side castings 3.y Itis mounted: in adjustable chine. Theblocks 16 are slidablyarranged insubstantial'ly horizontal guides 18,formed *157 ata-n opening'26;

. in sidewardly placed castings 20. The castings20 may eitherbe-forined'integrally with the side castingsY 3 Aor be bolted thereto.It is obvious' that `the shaft 57 may be moved forwardly or rearwardlyby ysliding the bearing blocks 16 in their guides'18. Substantiallyhorizontalelongated passages 22V (see Fig. 1)

r are formed in the side castings 3in' order 'to permit said movement ofthe llower cross shaft57. A proper tongued and grooved formation of thebottoms of the guidespre# vents sidewise motion ofthe blocks and yetpermits their .removalv at one end of their travel. Eachv of a pair ofleversv 28 vis piv-V oted to a side casting 3 at the upper front portionof said'casting, that is, beneath the` guide casting 41. 'Each'reachesdownwardly and embraces 'ai portion of its respective shaft The openingsA26 are of such length, that if the levers 28V be swung fo'r'wardly orVrearwardly the blocks. 16fmay tiiaverse their-complete predeterminedpath.

Each'opening. 30 permits ample' swing p-f itscorresponding lever 28.

Itis obvious fatthisstage of thef'dscription, that by swinging thelevers 28 upon,

. their. pivot rod 2, that the lower cross. shaft 57-mayv be moved'forward-ly orV rearwardlyk off the Crusher;

rearward end of the machine.- These side bars may be adjustedby means ofnuts and lock nuts so that they may govern the swing position of theVlevers 28 and other parts to be described. VFig. 3 shows one of twoslots 42 formed in the side castings 3 which accommodatethe forward andrearward motion of the clamping through-bolt or lshaft. 36. AThe shaft36 reaches laterally across'theinachineKFigs. 1 and 3), as doesReference to Fig. 3 indicates that the cross Vshaft 57 has fastenedthereto sprockets 59 placed'just within the limitsV of the side castings3./ Y

Over the. sprockets'59 of the lower shaft 57and the-supportingrolls 55of'the upper shaft 45 is placed a'ibelt or chain 67` com-v prisinglinksor-breaker plates 69 formed of solid fmanganesero'r other wear andimpact resistinginaterial (see Figs. 3, 4 and 5). f

Each linkv 69-comprises a stagger shaped bar adapted to be pinnedrtothenext'bar and havingiineansformed to cooperate with the Ysprockets 59such that saidgsprockets can effeet driving ofthe chain of breakerplates. 'ln the above description, certain detailed features have notbeenv set out, inasmuchv as they are set outinore particularly inLPatentNo. 1,605,181, dated November2, 1926; Y'

The-improvement herein set out comprisesY the addition Aof a. sprocketshaft 71 carrying sprockets 73 adapted to vreceive t-he chain of breakerplates 1in driving. relationship. It

willbe noted from Fig.l 37that thefspro'ckets 73 are sorpositioned` withrespect to the-pe- 'riphery of the hammer that the vchain isjuxtaposed-'near the hammer elements over a substantial arcuate portion,instead of' merelv tangeiitially. as has been the casebefore;

The liners v39 serve to guide the chain sothat it does not engage;thefhammers. f The llower reach' 7 5 of thechain between the sprockets73 and 59 does .not require Iguiding' inthe form of'Fig'3-,becaiise-said*reach is short. M

The advantage ofthe aboveeconstiuction is thatthe breakerplates traversepath which. permitslongerV juxtaposition' of breakerjfpl'ates:aiidghammers'so that ,an increase crush-ing effect is obtained with4the.H

advantage of having movable breakerplates adapted to; draw material intothe hammer paths.

The linked chain 67 and the hammersv 17 form' the crushing elements ofvthis machine,

The links V'cover the 'width of the-hammer rotorAL in projection. 1lnorderjto withstand the attendant yimpact of the crushing 'opera-V tionthe chain' 67j, or, breaker platesy 69,:are

backedby-a suitablerugged platen 81, 'ThisI j platen 81Lispivoted totheend castings- 3 by thesaidpivot rod ,2: whichl forms thev pivots fortheoutsideadjusting-arms28 (see Figs.

2 and 3).' .Itbacksthe chain of breaker [plates .at the point ,offimpact..- lt mayfbead:

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justed to diliferent required degrees of slope of the breaker plates orto dill'erent degrees of wear in said members by means of the said therods 32 and levers 28, after loosening shaft 36, that the backing platen31 is automatically adjusted by means ot the said rod 36. L i v In Fig.2 is illustrated the driving means machine the shaft 57 extendsoutwardly to receive a splined universal joint 111. The

joint 111 is provided withv a drive shaft 113. The shaft 113 is inturn'driven through another splined universal joint`115 by a primarydrive shaft 117 emanating from a suitable driving source.

The shaft 57 is driven in clockwise direc tion as viewed in Figs. 1 and3. It is obvious that, due to the universal drive def scribed, that theshaft 57 may be driven in any of its adjusted positionsandthereby drivesthe breaker plate chain downwardly at the point of impact. tatecounterclockwise as viewed in Figs. 1 and 3. Their linear speed at thecrushing point is preferably substantially7 higher than that of themoving plates, whereby material is carried down to the gratos.

The opertion of the machine is as `follows:

Material such as lump rock is fed into the hopper 7. Gravity carries itdownward on the sloping breaker plates into the paths ot the rapidlyrotating hammers 17.. -Vlhese hammers impact the lumpy material againsttheV slowly Vand downwardly moving breaker plate chains, therebybreaking most of the material down to a size small enough to pass thecage bars 33. That which hasV not been broken small enough can netpassthe cage bars and consequently goes around with the hammers 'for asecond crushing. i' rEhe liners la and'37 protect the frame againstwear. i

The breaker plates of course transmit the force of the blow given tothem, to the back-i ing platen 81. Although the upper reach of chainbetween sprockets 59, 7 3 is not provided with a backing platen,` vyetthis is not a disadvantage, because the primary impact does not occuratthis region. It is however clear that a backing platen might bearranged at this region. One advantage of moving the breaker plates isto carry the material down into the hammers.

Anotherl advantage of moving the breaker plates is to equalize wear onthem. vThe advantages of having the adjustments de- The hammers 17 roiare 'achieved and point of tangency.

scribed," 'for' purposes of `grading material fandtoftakeupwear areobvious. The Viinproved*means for making'fthese adjustments saves timeinmaking them for two such adj ustments may be made at once and while themachine vis in motion." The cop'erati'on ot lo the universal driveJpermi'tssuchV adjustments. InFig; l is lsfhown a -modied'form ofi themachine in which'the` grating 33 is eliminated and the `shaft `*Z1 jisre-positioned -so thatxa greater arc ofijuxtaposition is had between thechain and' the hammers i In this case liners119are added between 'thechain reaches oneach side oi the casing so as :toaid in guida ing thechaink and supporting it against? the grinding action? In thismodifiedformthe applied to shaft 57; At the left side of the i backafterthe center line of' thefmachine is passed, thus enhancingthecrushingeiiect,

but at'the same timethe movement of the chain Vprevents gathering ofVparticles l 'at their. u

hollo'wportion. l j Y I I In viewoftheabove, it is believed that thevarious features of thisV i'nventionwill be clear without `furtherelaboratiomand it'will .be seen thatl withthe apparatus herein' des@wscribed, the severaibbjscts of @hein-vennen j other advantageous results"`-Asmany`changes could'be made in carrying'outfthe' aboveconstructionwithout des.A

parting from the scope of' the" invention, 'it

is iiitended that allmatter contained in the above description `or showninf the accom- .panying drawings shall4 be interpreted as illustrativeand not in Va limiting "I claim j Y 1;" In acrush'enthe combination ofrotary crushing elements, a chain o1' vmovable im. pact platescoopera-'tine therewith and adapted to receive the impact of blows ofsaid ele-1 ments on materialbeing crushed, means backing said chain atthe point-.of impact, said impact plates moving in juxtaposition `tosaid elements over an arc.- v

2. In a crusher,the combination of rotary; crushing elements, movableimpact plates colow region"- V121-, the material "tends" to rolloperating therewith, means for moving said I plates in a substantiallystraight line tangentially toward the periphery of saidcrushingelements, a platen backing said impact-; plates at the point oftangency, and means for movingsaid impact plates in juxtaposition tosaidelement over an are beyond the 3.- In a cruSher, the combination ofrotary crushing elements, movable impact plates cooperating therewith,means for moving said plates in a substantiall straight linetangentially toward the periphery of said crushing elements, a platenbacking said impactW Y said point of tangency.

plates at the point of`4V tangency, means" for moving said impact platesin'juxtaposition to said elementfover. an are beyondthe point oftangency,Y and supporting andguidmg means located endwise of Saidimpactplates VWhere they move arcuately'.` 'I Y Y 4f. In a'crusher, thecombination of rotary crushing elements, movable Vimpact platescooperating therewith, y means for Vmoving said plates in asubstantiallystraight line tangen- `tially toward the peripherylof said crushingelements, a platen-backing said impact *plates` atthe point ofVtangency, means for moving Asaid impactqplates in juxtaposition to saidelement over an arc/'beyond the point of tangency, supporting andguiding means located endwise of said. impactplates Where they i movearcuately, and supports for the impact plates located at theendsthereofandi at the 5. Inra crusher,*the combination crusliinzgf`elements, a chain of' movable impact plates cooperatingtherewith andadapted to receive the impact of blows ofV said elements onrmaterlalbemgfcrushedmeans backing said cham, said impact platesmovi-ng 1njuxtaposition to saidV cruslingelements-over an armandfarcuatelypositioned grating eX- tending the arcof said impact plates.

6. Ina Crusher, the combination of rotary f f i crushing elements,a'chain vof'movable lim-L pact plates .cooperatingftherewithand adaptedto receive the impact ofl blows o -said ele- Y ments onmaterial'beingcrushed, saidimpact plates moving injuxtaposition tofsaidcrush- Y ing elementsover an are, and arcuately positionedv gratingextendingy the arc of said impact plates. Y

' Inv testimony whereof, I- have signedmy name to this specificationthis 2nd day of 0ct0ber,1928. y Y

EDWARD H.FRI CKEY.

of rotary i

